Home / 284,365,723.71-392,424,603.09-153,985,531.71

Finding the Fourth Proportional to 284,365,723.71, 392,424,603.09 and 153,985,531.71

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Solution

The fourth proportional to 284,365,723.71, 392,424,603.09 and 153,985,531.71 is: 212,499,981.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,365,723.71 : 392,424,603.09 = 153,985,531.71 : x
  2. Step 2: Convert to fraction form
    284,365,723.71/392,424,603.09 = 153,985,531.71/x
  3. Step 3: Cross multiply
    284,365,723.71x = 392,424,603.09 × 153,985,531.71
  4. Step 4: Simplify right side
    284,365,723.71x = 60,427,711,162,899,360
  5. Step 5: Solve for x
    x = 60,427,711,162,899,360/284,365,723.71
  6. Step 6: Final answer
    x = 212,499,981.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.